As adjectives the difference between serene and nonchalant

is that serene is peaceful, calm, unruffled while nonchalant is casually calm and relaxed.

As a verb serene

is to make serene.

As a noun serene

is serenity; clearness; calmness.

As a proper noun Serene

is {{given name|female|from=English}}. A rare variant of Serena.

Fouling is a related term of uncleanness.

As nouns the difference between fouling and uncleanness

is that fouling is the adhesion of a foreign material onto a surface, especially so as to reduce its functionality while uncleanness is (uncountable) the state of being unclean.

As a verb fouling

is .

Surreptitious is a related term of undecipherable.

As adjectives the difference between surreptitious and undecipherable

is that surreptitious is stealth]]y, furtive, [[hidden|well hidden, covert (especially movements) while undecipherable is not easily deciphered; difficult to read.

Holiday is a synonym of merrymaking.

As a proper noun holiday

is .

As a noun merrymaking is

joyful festivities, especially as a celebration.

Outfit is a related term of vesture.

As nouns the difference between outfit and vesture

is that outfit is a set of clothing (with accessories) while vesture is a covering of or like clothing.

As verbs the difference between outfit and vesture

is that outfit is to provide with, usually for a specific purpose while vesture is (archaic) to clothe.

Proclaim is a related term of evangelise.

As verbs the difference between proclaim and evangelise

is that proclaim is to excitedly, verbosely and candidly describe while evangelise is .

Inaccuracy is a related term of misapprehension.

As nouns the difference between inaccuracy and misapprehension

is that inaccuracy is (uncountable) the property of being inaccurate; lack of accuracy while misapprehension is a failure to understand something; an illusion, misconception or misunderstanding.

Laborious is a related term of bewildering.

As adjectives the difference between laborious and bewildering

is that laborious is requiring much physical effort; toilsome while bewildering is very confusing, perplexing, or baffling, often due to a very large choice being available.

As a verb bewildering is

.

As a noun bewildering is

bewilderment.

State is a related term of swear.

As verbs the difference between state and swear

is that state is while swear is to take an oath or swear can be to be lazy; rest for a short while during working hours.

As a noun swear is

a swearword.

As an adjective swear is

heavy.

As nouns the difference between conviction and dogma

is that conviction is a firmly held belief while dogma is an authoritative principle, belief or statement of opinion, especially one considered to be absolutely true regardless of evidence, or without evidence to support it.